Nissan Pathfinder (2009 year). Manual — part 240
DLN-402
< FUNCTION DIAGNOSIS >
[REAR FINAL DRIVE: R200]
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
FUNCTION DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
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Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
Possible cause and SUSPECTED PARTS
Ge
ar t
o
o
th
rou
g
h
Gea
r co
nt
ac
t i
m
p
rop
er
T
o
ot
h s
u
rf
ac
es
w
o
rn
Ba
ck
la
sh
in
co
rrec
t
Co
mp
an
io
n f
lan
ge
e
x
c
e
s
s
iv
e
run
o
u
t
Gea
r oi
l i
m
p
rop
er
PR
OP
EL
LE
R
S
H
A
F
T
REA
R
AXLE
REA
R
SUSPENSI
ON
TI
RE
S
ROAD W
H
EEL
DRIV
E
SHAFT
BR
AK
E
S
S
T
EERING
Symptom
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
2009 Pathfinder
DESCRIPTION
DLN-403
< FUNCTION DIAGNOSIS >
[REAR FINAL DRIVE: R200]
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DESCRIPTION
Cross-Sectional View
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1.
Side flange
2.
Pinion mate gear
3.
Drive gear
4.
Pinion mate shaft
5.
Differential case
6.
Side bearing
7.
Drive pinion
8.
Drive pinion front bearing
9.
Companion flange
10. Collapsible spacer
11.
Drive pinion rear bearing
12. Side gear
WDIA0119E
2009 Pathfinder
DLN-404
< ON-VEHICLE MAINTENANCE >
[REAR FINAL DRIVE: R200]
DIFFERENTIAL GEAR OIL
ON-VEHICLE MAINTENANCE
DIFFERENTIAL GEAR OIL
Changing Differential Gear Oil
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DRAINING
1.
Stop the engine.
2.
Remove the drain plug and gasket from the rear final drive
assembly to drain the differential gear oil.
3.
Install the drain plug with a new gasket to the rear final drive
assembly. Tighten to the specified torque. Refer to
.
CAUTION:
Do not reuse gasket.
FILLING
1.
Remove the filler plug and gasket from the rear final drive ass-
mebly.
2.
Fill the rear final drive assembly with new differential gear oil
until the level reaches the specified level near the filler plug hole.
3.
Install the filler plug with a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to
.
CAUTION:
Do not reuse gasket.
Checking Differential Gear Oil
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OIL LEAKAGE AND OIL LEVEL
1.
Make sure that differential gear oil is not leaking from the rear final drive assembly or around it.
2.
Check the differential gear oil level from the filler plug hole as
shown.
CAUTION:
Do not start engine while checking differential gear oil level.
3.
Install the filler plug with a new gasket on it to the rear final drive
assembly. Tighten to the specified torque. Refer to
.
CAUTION:
Do not reuse gasket.
LDIA0162E
Differential gear oil
grade and capacity
LDIA0163E
LDIA0163E
2009 Pathfinder
FRONT OIL SEAL
DLN-405
< ON-VEHICLE REPAIR >
[REAR FINAL DRIVE: R200]
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ON-VEHICLE REPAIR
FRONT OIL SEAL
Removal and Installation
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REMOVAL
1.
Remove the drive shafts from the rear final drive assembly. Refer to
RAX-9, "Removal and Installation"
2.
Remove the side flanges and side oil seals. Refer to
DLN-407, "Removal and Installation"
3.
Remove the rear propeller shaft. Refer to
DLN-317, "Removal and Installation"
4.
Measure the total preload torque. Refer to
DLN-413, "Disassembly and Assembly"
.
NOTE:
Record the total preload torque measurement.
5.
Remove the drive pinion lock nut using Tool.
6.
Put matching marks on the companion flange and drive pinion
using paint.
CAUTION:
Use paint to make the matching marks. Do not damage the
companion flange or drive pinion.
7.
Remove the companion flange using suitable tool.
8.
Remove the front oil seal using Tool.
INSTALLATION
Tool number
: KV40104000 (
—
)
SDIA1142E
SDIA1054E
Tool number
: KV381054S0 (J-34286)
SDIA0485E
2009 Pathfinder
DLN-406
< ON-VEHICLE REPAIR >
[REAR FINAL DRIVE: R200]
FRONT OIL SEAL
1.
Apply multi-purpose grease to the lips and differential gear oil to
the circumference of the new front oil seal. Then drive the new
front oil seal in evenly until it becomes flush with the gear carrier
using Tool.
CAUTION:
• Do not reuse front oil seal.
• Do not incline the new front oil seal when installing.
• Apply multi-purpose grease to the lips and differential
gear oil to the circumference of the new front oil seal.
2.
Install the companion flange to the drive pinion while aligning the matching marks.
3.
Apply anti-corrosive oil to the threads of the drive pinion and the
seating surface of the new drive pinion lock nut. Then adjust the
drive pinion lock nut tightening torque using Tool A, and check
the total preload torque using Tool B.
• The total preload torque should be within the total preload
torque specification. When not replacing the collapsible
spacer, it should also be equal to the measurement taken dur-
ing removal plus an additional 0.56 N·m (0.06 Kg-m, 5 in-lb).
• If the total preload torque is low, tighten the drive pinion lock
nut in 6.8 N·m (0.69 Kg-m, 5ft-lb) increments until the total pre-
load torque is met.
CAUTION:
• Do not reuse drive pinion lock nut.
• Apply anti-corrosive oil to the threads of the drive pinion
and the seating surface of the new drive pinion lock nut.
• Adjust the drive pinion lock nut tightening torque to the
lower limit first. Do not exceed the drive pinion lock nut
specified torque. Refer to
DLN-413, "Disassembly and Assembly"
• Do not loosen drive pinion lock nut to adjust the total preload torque. If the total preload torque
exceeds the specifications, replace the collapsible spacer and tighten it again to adjust. Refer to
DLN-413, "Disassembly and Assembly"
• After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rota-
tion malfunction, and other malfunctions.
4.
Installation of the remaining components is in the reverse order of removal.
CAUTION:
Check the differential gear oil level after installation. Refer to
DLN-404, "Checking Differential Gear
.
Tool number
: ST30720000 (J-25405)
PDIA0565E
Tool number
A: KV40104000 (
—
)
B: ST3127S000 (J-25765-A)
Total preload torque:
Refer to
.
WDIA0380E
2009 Pathfinder
SIDE OIL SEAL
DLN-407
< ON-VEHICLE REPAIR >
[REAR FINAL DRIVE: R200]
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SIDE OIL SEAL
Removal and Installation
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REMOVAL
1.
Remove the rear wheel sensor. Refer to
BRC-129, "Removal and Installation"
2.
Remove the drive shaft from the rear final drive assembly. Refer to
RAX-9, "Removal and Installation"
.
3.
Remove the side flange using Tools.
NOTE:
Circular clip installation position: Rear final drive side
4.
Remove the side oil seal using suitable tool.
CAUTION:
Do not to damage gear carrier.
INSTALLATION
1.
Apply multi-purpose grease to the lips and differential gear oil to
the circumference of the new side oil seal. Then drive the new
side oil seal in evenly until it becomes flush with the gear carrier
using Tool.
CAUTION:
• Do not reuse side oil seal.
• Do not incline the new side oil seal when installing.
• Apply multi-purpose grease to the lips and differential
gear oil to the circumference of the new side oil seal.
2.
Install the side flange using Tool.
a.
Install the Tool to the side oil seal as shown.
b.
Insert the side flange until the serrated part of the side flange
has engaged the serrated part of the side gear and remove the
Tool.
c.
Drive in the side flange using suitable tool.
NOTE:
Installation is completed when the driving sound of the side
flange turns into a sound which seems to affect the whole rear
final drive assembly.
3.
Installation of the remaining components is in the reverse order of removal.
Tool numbers
A: KV40104100 (
—
)
B: ST36230000 (J-25840-A)
WDIA0115E
SDIA0495E
Tool number
: KV38100200 (J-26233)
SDIA0496E
Tool number
: KV38107900 (J-39352)
SDIA0822E
2009 Pathfinder
DLN-408
< ON-VEHICLE REPAIR >
[REAR FINAL DRIVE: R200]
SIDE OIL SEAL
CAUTION:
Check the differential gear oil level after installation. Refer to
DLN-404, "Checking Differential Gear
.
2009 Pathfinder
CARRIER COVER
DLN-409
< ON-VEHICLE REPAIR >
[REAR FINAL DRIVE: R200]
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CARRIER COVER
Removal and Installation
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REMOVAL
1.
Remove the rear final drive assembly. Refer to
DLN-410, "Removal and Installation"
.
2.
Remove the carrier cover bolts and separate the carrier cover
from the gear carrier using Tool.
CAUTION:
• Do not damage the mating surface.
• Do not insert flat-bladed screwdriver, this will damage the
mating surface.
INSTALLATION
1.
Apply a 3 mm (0.12 in) bead of sealant to the mating surface of
the carrier cover as shown.
• Use Genuine Silicone RTV or equivalent. Refer to
"Recommended Chemical Products and Sealants"
CAUTION:
Remove any old sealant adhering to the mating surfaces.
Also remove any moisture, oil, or foreign material adhering
to the application and mating surfaces.
2.
Install the carrier cover to the gear carrier. Tighten the bolts to
the specified torque. Refer to
3.
Install the rear final drive assembly. Refer to
CAUTION:
Fill the rear final drive assembly with recommended differential gear oil. Refer to
"Changing Differential Gear Oil"
.
Tool number
: KV10111100 (J-37228)
WDIA0123E
WDIA0282E
2009 Pathfinder
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